Anritsu 682XXB - Manual (Page 80)

Test
Procedure
(11 to 20 GHz) The following procedure lets you measure the 11 to
20 GHz RF output harmonic levels to verify that
they meet specifications.
NOTE
Because an external mixer is required for
these measurements, the RF output flat-
ness of the signal generator is used to cor-
rect for; (1) variations caused by switching
from the fundamental input to the external
mixer input of the Spectrum Analyzer, and
(2) the flatness of the mixer.
1. Set up the 682XXB/683XXB as follows:
a. Reset the instrument by pressing SYSTEM ,
then Reset . Upon reset the CW Menu is dis-
played.
b. Press Edit F1 to open the current frequency
parameter for editing.
c. Set F1 to the frequency indicated on the Test
Record.
d. Press Edit L1 to open the current power level
parameter for editing.
e. Set L1 to –30 dBm output power.
NOTE
If the 682XXB/683XXB is not fitted with
Option 2, install a 30 dB attenuator (AN-
RITSU 41KC-20 and 41KC-10 for
£40 GHz
models; 41V-20 and 41V-10 for >40 GHz
models) and set L1 to 0.0 dBm output
power.
2. Set up the Spectrum Analyzer as follows:
a. Span: 5 kHz/div
b. CF: Set to the 682XXB/683XXB frequency
value.
c. RBW: 1 kHz
d. Video Filter Wide: On
3. Adjust the Spectrum Analyzer Peaking control
for maximum signal, then adjust the Reference
Level control to place the signal at the top of the
screen graticule. It may be necessary to also ad-
just the 682XXB/683XXB output power level
3-20 682XXB/683XXB MM
PERFORMANCE HARMONIC TEST: RF OUTPUT
VERIFICATION SIGNALS FROM 2 TO 20 GHz